{"height":"190","provider_name":"Hatena Blog","author_name":"shuzo_kino","categories":["ruby"],"author_url":"https://blog.hatena.ne.jp/shuzo_kino/","url":"https://shuzo-kino.hateblo.jp/entry/2014/08/16/122334","description":"active_support\u63d0\u4f9b\u306ein?\u30e1\u30bd\u30c3\u30c9\u3068presence_in\u30e1\u30bd\u30c3\u30c9\u306f\u5730\u5473\u306b\u4f7f\u3048\u308b\u5b50\u3067\u3059\u3002\u307e\u305a\u3001in?\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3002 \u3053\u308c\u306fObject\u3092\u62e1\u5f35\u3057\u3001\u6e21\u3057\u305f\u30e2\u30ce\u306e\u4e2d\u306b\u81ea\u8eab(self)\u304c\u5165\u3063\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u308c\u307e\u3059\u3002 require 'active_support/core_ext' 1.in?(1..100) #=> true \"lo\".in?(\"hello\") #=> true \"\u304a\".in?(\"\u304a\u306f\u3088\u3046\") #=> true 1.in?([2,9,1,8]) #=> true \u5b9f\u306f\u307b\u307c\u540c\u69d8\u306e\u6319\u52d5\u306finclude?\u3067\u5b9f\u73fe\u3067\u304d\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u304c...\u9806\u756a\u304c\u9006\u3067\u3059 (1..100).\u2026","published":"2014-08-16 12:23:34","provider_url":"https://hatena.blog","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshuzo-kino.hateblo.jp%2Fentry%2F2014%2F08%2F16%2F122334\" title=\"active_support\u63d0\u4f9b\u306ein?\u30e1\u30bd\u30c3\u30c9\u3068presence_in\u30e1\u30bd\u30c3\u30c9\u304c\u5730\u5473\u306b\u4f7f\u3048\u308b - Bye Bye Moore\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","blog_title":"Bye Bye Moore","width":"100%","title":"active_support\u63d0\u4f9b\u306ein?\u30e1\u30bd\u30c3\u30c9\u3068presence_in\u30e1\u30bd\u30c3\u30c9\u304c\u5730\u5473\u306b\u4f7f\u3048\u308b","image_url":null,"blog_url":"https://shuzo-kino.hateblo.jp/"}